qeth.h

来自「Linux Kernel 2.6.9 for OMAP1710」· C头文件 代码 · 共 1,039 行 · 第 1/2 页

	QETH_PROT_IPV6 = 0x0006,
};

enum qeth_ip_types {
	QETH_IP_TYPE_NORMAL,
	QETH_IP_TYPE_VIPA,
	QETH_IP_TYPE_RXIP,
};

enum qeth_cmd_buffer_state {
	BUF_STATE_FREE,
	BUF_STATE_LOCKED,
	BUF_STATE_PROCESSED,
};
/**
 * IP address and multicast list
 */
struct qeth_ipaddr {
	struct list_head entry;
	enum qeth_ip_types type;
	enum qeth_ipa_setdelip_flags set_flags;
	enum qeth_ipa_setdelip_flags del_flags;
	int is_multicast;
	volatile int users;
	enum qeth_prot_versions proto;
	unsigned char mac[OSA_ADDR_LEN];
	union {
		struct {
			unsigned int addr;
			unsigned int mask;
		} a4;
		struct {
			struct in6_addr addr;
			unsigned int pfxlen;
		} a6;
	} u;
};

struct qeth_ipato_entry {
	struct list_head entry;
	enum qeth_prot_versions proto;
	char addr[16];
	int mask_bits;
};

struct qeth_ipato {
	int enabled;
	int invert4;
	int invert6;
	struct list_head entries;
};

struct qeth_channel;

struct qeth_cmd_buffer {
	enum qeth_cmd_buffer_state state;
	struct qeth_channel *channel;
	unsigned char *data;
	int rc;
	void (*callback) (struct qeth_channel *, struct qeth_cmd_buffer *);
};


/**
 * definition of a qeth channel, used for read and write
 */
struct qeth_channel {
	enum qeth_channel_states state;
	struct ccw1 ccw;
	spinlock_t iob_lock;
	wait_queue_head_t wait_q;
	struct tasklet_struct irq_tasklet;
	struct ccw_device *ccwdev;
/*command buffer for control data*/
	struct qeth_cmd_buffer iob[QETH_CMD_BUFFER_NO];
	atomic_t irq_pending;
	volatile int io_buf_no;
	volatile int buf_no;
};

/**
 *  OSA card related definitions
 */
struct qeth_token {
	__u32 issuer_rm_w;
	__u32 issuer_rm_r;
	__u32 cm_filter_w;
	__u32 cm_filter_r;
	__u32 cm_connection_w;
	__u32 cm_connection_r;
	__u32 ulp_filter_w;
	__u32 ulp_filter_r;
	__u32 ulp_connection_w;
	__u32 ulp_connection_r;
};

struct qeth_seqno {
	__u32 trans_hdr;
	__u32 pdu_hdr;
	__u32 pdu_hdr_ack;
	__u16 ipa;
};

struct qeth_reply {
	struct list_head list;
	wait_queue_head_t wait_q;
	int (*callback)(struct qeth_card *,struct qeth_reply *,unsigned long);
 	u32 seqno;
	unsigned long offset;
	int received;
	int rc;
	void *param;
	struct qeth_card *card;
	atomic_t refcnt;
};

#define QETH_BROADCAST_WITH_ECHO    1
#define QETH_BROADCAST_WITHOUT_ECHO 2

struct qeth_card_info {
	char if_name[IF_NAME_LEN];
	unsigned short unit_addr2;
	unsigned short cula;
	unsigned short chpid;
	__u16 func_level;
	char mcl_level[QETH_MCL_LENGTH + 1];
	int guestlan;
	int portname_required;
	int portno;
	char portname[9];
	enum qeth_card_types type;
	enum qeth_link_types link_type;
	int is_multicast_different;
	int initial_mtu;
	int max_mtu;
	int broadcast_capable;
	int unique_id;
	__u32 csum_mask;
};

struct qeth_card_options {
	struct qeth_routing_info route4;
	struct qeth_ipa_info ipa4;
	struct qeth_ipa_info adp; /*Adapter parameters*/
#ifdef CONFIG_QETH_IPV6
	struct qeth_routing_info route6;
	struct qeth_ipa_info ipa6;
#endif /* QETH_IPV6 */
	enum qeth_checksum_types checksum_type;
	int broadcast_mode;
	int macaddr_mode;
	int fake_broadcast;
	int add_hhlen;
	int fake_ll;
};

/*
 * thread bits for qeth_card thread masks
 */
enum qeth_threads {
	QETH_SET_IP_THREAD  = 1,
	QETH_SET_MC_THREAD  = 2,
	QETH_RECOVER_THREAD = 4,
};

struct qeth_card {
	struct list_head list;
	enum qeth_card_states state;
	int lan_online;
	spinlock_t lock;
/*hardware and sysfs stuff*/
	struct ccwgroup_device *gdev;
	struct qeth_channel read;
	struct qeth_channel write;
	struct qeth_channel data;

	struct net_device *dev;
	struct net_device_stats stats;

	struct qeth_card_info info;
	struct qeth_token token;
	struct qeth_seqno seqno;
	struct qeth_card_options options;

	wait_queue_head_t wait_q;
#ifdef CONFIG_QETH_VLAN
	spinlock_t vlanlock;
	struct vlan_group *vlangrp;
#endif
	struct work_struct kernel_thread_starter;
	spinlock_t thread_mask_lock;
	volatile unsigned long thread_start_mask;
	volatile unsigned long thread_allowed_mask;
	volatile unsigned long thread_running_mask;
	spinlock_t ip_lock;
	struct list_head ip_list;
	struct list_head ip_tbd_list;
	struct qeth_ipato ipato;
	struct list_head cmd_waiter_list;
	/* QDIO buffer handling */
	struct qeth_qdio_info qdio;
#ifdef CONFIG_QETH_PERF_STATS
	struct qeth_perf_stats perf_stats;
#endif /* CONFIG_QETH_PERF_STATS */
	int use_hard_stop;
};

struct qeth_card_list_struct {
	struct list_head list;
	rwlock_t rwlock;
};

extern struct qeth_card_list_struct qeth_card_list;

/*notifier list */
struct qeth_notify_list_struct {
	struct list_head list;
	struct task_struct *task;
	int signum;
};
extern spinlock_t qeth_notify_lock;
extern struct list_head qeth_notify_list;

/*some helper functions*/

inline static __u8
qeth_get_ipa_adp_type(enum qeth_link_types link_type)
{
	switch (link_type) {
	case QETH_LINK_TYPE_HSTR:
		return 2;
	default:
		return 1;
	}
}

inline static int
qeth_get_hlen(__u8 link_type)
{
#ifdef CONFIG_QETH_IPV6
	switch (link_type) {
	case QETH_LINK_TYPE_HSTR:
	case QETH_LINK_TYPE_LANE_TR:
		return sizeof(struct qeth_hdr) + TR_HLEN;
	default:
#ifdef CONFIG_QETH_VLAN
		return sizeof(struct qeth_hdr) + VLAN_ETH_HLEN;
#else
		return sizeof(struct qeth_hdr) + ETH_HLEN;
#endif
	}
#else  /* CONFIG_QETH_IPV6 */
#ifdef CONFIG_QETH_VLAN
	return sizeof(struct qeth_hdr) + VLAN_HLEN;
#else
	return sizeof(struct qeth_hdr);
#endif
#endif /* CONFIG_QETH_IPV6 */
}

inline static unsigned short
qeth_get_netdev_flags(int cardtype)
{
	switch (cardtype) {
	case QETH_CARD_TYPE_IQD:
		return IFF_NOARP;
#ifdef CONFIG_QETH_IPV6
	default:
		return 0;
#else
	default:
		return IFF_NOARP;
#endif
	}
}

inline static int
qeth_get_initial_mtu_for_card(struct qeth_card * card)
{
	switch (card->info.type) {
	case QETH_CARD_TYPE_UNKNOWN:
		return 1500;
	case QETH_CARD_TYPE_IQD:
		return card->info.max_mtu;
	case QETH_CARD_TYPE_OSAE:
		switch (card->info.link_type) {
		case QETH_LINK_TYPE_HSTR:
		case QETH_LINK_TYPE_LANE_TR:
			return 2000;
		default:
			return 1492;
		}
	default:
		return 1500;
	}
}

inline static int
qeth_get_max_mtu_for_card(int cardtype)
{
	switch (cardtype) {
	case QETH_CARD_TYPE_UNKNOWN:
		return 61440;
	case QETH_CARD_TYPE_OSAE:
		return 61440;
	case QETH_CARD_TYPE_IQD:
		return 57344;
	default:
		return 1500;
	}
}

inline static int
qeth_get_mtu_out_of_mpc(int cardtype)
{
	switch (cardtype) {
	case QETH_CARD_TYPE_IQD:
		return 1;
	default:
		return 0;
	}
}

inline static int
qeth_get_mtu_outof_framesize(int framesize)
{
	switch (framesize) {
	case 0x4000:
		return 8192;
	case 0x6000:
		return 16384;
	case 0xa000:
		return 32768;
	case 0xffff:
		return 57344;
	default:
		return 0;
	}
}

inline static int
qeth_mtu_is_valid(struct qeth_card * card, int mtu)
{
	switch (card->info.type) {
	case QETH_CARD_TYPE_OSAE:
		return ((mtu >= 576) && (mtu <= 61440));
	case QETH_CARD_TYPE_IQD:
		return ((mtu >= 576) &&
			(mtu <= card->info.max_mtu + 4096 - 32));
	case QETH_CARD_TYPE_UNKNOWN:
	default:
		return 1;
	}
}

inline static int
qeth_get_arphdr_type(int cardtype, int linktype)
{
	switch (cardtype) {
	case QETH_CARD_TYPE_OSAE:
		switch (linktype) {
		case QETH_LINK_TYPE_LANE_TR:
		case QETH_LINK_TYPE_HSTR:
			return ARPHRD_IEEE802_TR;
		default:
			return ARPHRD_ETHER;
		}
	case QETH_CARD_TYPE_IQD:
	default:
		return ARPHRD_ETHER;
	}
}

#ifdef CONFIG_QETH_PERF_STATS
inline static int
qeth_get_micros(void)
{
	return (int) (get_clock() >> 12);
}
#endif

static inline int
qeth_get_qdio_q_format(struct qeth_card *card)
{
	switch (card->info.type) {
	case QETH_CARD_TYPE_IQD:
		return 2;
	default:
		return 0;
	}
}

static inline void
qeth_ipaddr4_to_string(const __u8 *addr, char *buf)
{
	sprintf(buf, "%i.%i.%i.%i", addr[0], addr[1], addr[2], addr[3]);
}

static inline int
qeth_string_to_ipaddr4(const char *buf, __u8 *addr)
{
	const char *start, *end;
	char abuf[4];
	char *tmp;
	int len;
	int i;

	start = buf;
	for (i = 0; i < 3; i++) {
		if (!(end = strchr(start, '.')))
			return -EINVAL;
		len = end - start;
		memset(abuf, 0, 4);
		strncpy(abuf, start, len);
		addr[i] = simple_strtoul(abuf, &tmp, 10);
		start = end + 1;
	}
	memset(abuf, 0, 4);
	strcpy(abuf, start);
	addr[3] = simple_strtoul(abuf, &tmp, 10);
	return 0;
}

static inline void
qeth_ipaddr6_to_string(const __u8 *addr, char *buf)
{
	sprintf(buf, "%02x%02x:%02x%02x:%02x%02x:%02x%02x"
		     ":%02x%02x:%02x%02x:%02x%02x:%02x%02x",
		     addr[0], addr[1], addr[2], addr[3],
		     addr[4], addr[5], addr[6], addr[7],
		     addr[8], addr[9], addr[10], addr[11],
		     addr[12], addr[13], addr[14], addr[15]);
}

static inline int
qeth_string_to_ipaddr6(const char *buf, __u8 *addr)
{
	const char *start, *end;
	u16 *tmp_addr;
	char abuf[5];
	char *tmp;
	int len;
	int i;

	tmp_addr = (u16 *)addr;
	start = buf;
	for (i = 0; i < 7; i++) {
		if (!(end = strchr(start, ':')))
			return -EINVAL;
		len = end - start;
		memset(abuf, 0, 5);
		strncpy(abuf, start, len);
		tmp_addr[i] = simple_strtoul(abuf, &tmp, 16);
		start = end + 1;
	}
	memset(abuf, 0, 5);
	strcpy(abuf, start);
	tmp_addr[7] = simple_strtoul(abuf, &tmp, 16);
	return 0;
}

static inline void
qeth_ipaddr_to_string(enum qeth_prot_versions proto, const __u8 *addr,
		      char *buf)
{
	if (proto == QETH_PROT_IPV4)
		return qeth_ipaddr4_to_string(addr, buf);
	else if (proto == QETH_PROT_IPV6)
		return qeth_ipaddr6_to_string(addr, buf);
}

static inline int
qeth_string_to_ipaddr(const char *buf, enum qeth_prot_versions proto,
		      __u8 *addr)
{
	if (proto == QETH_PROT_IPV4)
		return qeth_string_to_ipaddr4(buf, addr);
	else if (proto == QETH_PROT_IPV6)
		return qeth_string_to_ipaddr6(buf, addr);
	else
		return -EINVAL;
}

extern int
qeth_setrouting_v4(struct qeth_card *);
extern int
qeth_setrouting_v6(struct qeth_card *);

extern int
qeth_add_ipato_entry(struct qeth_card *, struct qeth_ipato_entry *);

extern void
qeth_del_ipato_entry(struct qeth_card *, enum qeth_prot_versions, u8 *, int);

extern int
qeth_add_vipa(struct qeth_card *, enum qeth_prot_versions, const u8 *);

extern void
qeth_del_vipa(struct qeth_card *, enum qeth_prot_versions, const u8 *);

extern int
qeth_add_rxip(struct qeth_card *, enum qeth_prot_versions, const u8 *);

extern void
qeth_del_rxip(struct qeth_card *, enum qeth_prot_versions, const u8 *);

extern int
qeth_notifier_register(struct task_struct *, int );

extern int
qeth_notifier_unregister(struct task_struct * );

extern void
qeth_schedule_recovery(struct qeth_card *);

extern int
qeth_realloc_buffer_pool(struct qeth_card *, int);
#endif /* __QETH_H__ */